【已解决】KubeSphere DevOps 3.0 流水线构建的java服务jar包报错“没有主清单属性”

Jensen-Lone

### 【已解决】KubeSphere DevOps 3.0 流水线构建的java服务jar包报错“没有主清单属性

使用DevOps 3.0 流水线构建出来的制品jar，在执行
java -jar search-1.0-SNAPSHOT.jar后显示
search-1.0-SNAPSHOT.jar 中没有主清单属性。
百度该错误，是由于制品jar下META-INF\MANIFEST.MF中缺少了Spring-Boot-Version、Main-Class、Start-Class、Spring-Boot-Classes、Spring-Boot-Lib五个Springboot相关的属性。
需要再pom文件中添加Springboot打包插件
<plugin> 　　<groupId>org.springframework.boot</groupId> <artifactId>spring-boot-maven-plugin</artifactId> </plugin>
但是我的pom文件中已经添加了该打包插件。
请教各位有没有遇到类似问题。求解决方案。

制品jar下META-INF\MANIFEST.MF文件内容：
Manifest-Version: 1.0 Archiver-Version: Plexus Archiver Built-By: root Created-By: Apache Maven 3.5.3 Build-Jdk: 1.8.0_232
pom文件内容：
`<?xml version=“1.0” encoding=“UTF-8”?>
<project xmlns=“http://maven.apache.org/POM/4.0.0”
xmlns:xsi=“http://www.w3.org/2001/XMLSchema-instance”
xsi:schemaLocation=“http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd”>
<modelVersion>4.0.0</modelVersion>

<artifactId>search</artifactId>
<groupId>com.xxxxxx</groupId>
<version>1.0-SNAPSHOT</version>
<properties>
    <nacos-config-spring-boot.version>0.2.1</nacos-config-spring-boot.version>
</properties>
<dependencyManagement>
    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-dependencies</artifactId>
            <version>2.3.0.RELEASE</version>
            <type>pom</type>
            <scope>import</scope>
        </dependency>
    </dependencies>
</dependencyManagement>

<dependencies>
   …………………………
</dependencies>

<build>
    <plugins>
        <plugin>
            <groupId>org.jacoco</groupId>
            <artifactId>jacoco-maven-plugin</artifactId>
            <version>0.8.3</version>
            <configuration>
                <append>true</append>
            </configuration>
            <executions>
                <execution>
                    <id>agent-for-ut</id>
                    <goals>
                        <goal>prepare-agent</goal>
                    </goals>
                </execution>
                <execution>
                    <id>agent-for-it</id>
                    <goals>
                        <goal>prepare-agent-integration</goal>
                    </goals>
                </execution>
                <execution>
                    <id>jacoco-site</id>
                    <phase>verify</phase>
                    <goals>
                        <goal>report</goal>
                    </goals>
                </execution>
            </executions>
        </plugin>
        
        <plugin>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-maven-plugin</artifactId>
            <version>2.3.0.RELEASE</version>
             <configuration>
                <executable>true</executable>
            </configuration>
        </plugin>
        
        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-compiler-plugin</artifactId>
            <version>3.8.1</version>
            <configuration>
                <source>1.8</source>
                <target>1.8</target>
            </configuration>
        </plugin>
        
    </plugins>
</build>

</project>`

Jenkinsfile文件内容：
pipeline {
agent {
node {
label ‘maven’
}

}
stages {
stage(‘Checkout SCM’) {
steps {
git(url: ‘http://xx.xx.xx.xx:xxx/root/kubesphere-search.git’, credentialsId: ‘gitlab-id’, changelog: true, poll: false)
}
}
stage(‘Unit Test’) {
steps {
container(‘maven’) {
sh ‘mvn clean -gs pwd/configuration/settings.xml’
}

  }
}
stage('Build and Push') {
  steps {
    container('maven') {
      sh 'mvn -gs `pwd`/configuration/settings.xml  package -f pom.xml'
      sh 'docker login --username=xxx --password=xxxx http://xx.xx.xx.xx:xxx'
      sh 'docker build -f Dockerfile-on-prem -t $REGISTRY/$HARBOR_NAMESPACE/$APP_NAME:SNAPSHOT-$BUILD_NUMBER .'
      withCredentials([usernamePassword(credentialsId : 'harbor-id' ,passwordVariable : 'HARBOR_PASSWORD' ,usernameVariable : 'HARBOR_USERNAME' ,)]) {
        sh 'echo "$HARBOR_PASSWORD" | docker login $REGISTRY -u "$HARBOR_USERNAME" --password-stdin'
        sh 'docker push $REGISTRY/$HARBOR_NAMESPACE/$APP_NAME:SNAPSHOT-$BUILD_NUMBER'
      }

    }

  }
}
stage('Artifacts') {
  steps {
    archiveArtifacts 'target/*.jar'
  }
}
stage('Deploy to Dev') {
  steps {
    input(message: '@admin', submitter: 'admin')
    kubernetesDeploy(enableConfigSubstitution: true, deleteResource: false, kubeconfigId: '149-kubeconfig', configs: 'deploy/ks-search-ms-deployment.yaml')
  }
}

}
}

configuration-settings.xml文件内容：
`<?xml version=“1.0” encoding=“UTF-8”?>
<settings xmlns=“http://maven.apache.org/SETTINGS/1.0.0”
xmlns:xsi=“http://www.w3.org/2001/XMLSchema-instance”
xsi:schemaLocation=“http://maven.apache.org/SETTINGS/1.0.0 http://maven.apache.org/xsd/settings-1.0.0.xsd”>

<localRepository>/maven/repository</localRepository>

</pluginGroups>

<mirror>
<id>public</id>
<mirrorOf>*</mirrorOf>
<name>Public Repositories</name>
<url>http://xx.xx.xx.xx:xxxx/content/groups/public/</url>
</mirror>

</mirrors>
<profiles>
</profiles>
</settings>
`

Jensen-Lone

已解决，需要pom.xml文件修改如下：
<plugin> 　　<groupId>org.springframework.boot</groupId> <artifactId>spring-boot-maven-plugin</artifactId> <executions> <execution> <goals> <goal>repackage</goal> </goals> </execution> </executions> </plugin>
加完后，maven构建运行，部分截图如下：

之前未加“repackage”，构建运行截图如下：

spring-boot-maven插件的repackage（goal）有如下两个作用：
CSDN道友引用如下：
1、在原始Maven打包形成的jar包基础上，进行重新打包，新形成的jar包不但包含应用类文件和配置文件，而且还会包含应用所依赖的jar包以及Springboot启动相关类（loader等），以此来满足Springboot独立应用的特性；
2、将原始Maven打包的jar重命名为XXX.jar.original作为原始文件。

Rick

赞，感谢提供自己探索的解决方案，可以把这个帖子设置为已解决（不太清楚怎么操作，比如：在标题上加已解决的前缀）。